//Copyright 2009 Dominik Punz
//
//Licensed under the Apache License, Version 2.0 (the "License");
//you may not use this file except in compliance with the License.
//You may obtain a copy of the License at
//
//http://www.apache.org/licenses/LICENSE-2.0
//
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS,
//WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and
//limitations under the License.

#ifndef dispIdManager_h__
#define dispIdManager_h__

#include <string>
#include <map>

class CDispatchIdManager
{
public:
  static DISPID GetId(LPOLESTR methodName)
  {
    std::wstring strName(methodName);
    if (sNameToId.find(strName) != sNameToId.end())
      return sNameToId[strName];
    sIdCount ++;
    sNameToId[strName] = sIdCount;
    sIdToName[sIdCount] = strName;
    return sIdCount;
  }

  static const std::wstring& DispIdToName(DISPID dispid)
  {
    static const std::wstring empty;
    if (sIdToName.find(dispid) != sIdToName.end())
      return sIdToName[dispid];
    return empty;
  }

private:
  static std::map<DISPID, std::wstring> sIdToName;
  static std::map<std::wstring, DISPID> sNameToId;
  static DISPID sIdCount;
};

#endif // dispIdManager_h__